jd:/dev/blog - Tag - xen - Commentaires

Novell and RedHat fighting about Xen - thebluesgnr

thebluesgnr — Sat, 12 Aug 2006 01:39:01 +0000

According to Red Hat Xen will be stable in 3 or 4 months, when they ship RHEL 5.

Novell and RedHat fighting about Xen - Jon

Jon — Fri, 11 Aug 2006 21:11:33 +0000

I'm glad that Redhat believe it isn't ready yet: Just look at the xen "support" in Fedora Core (4, specifically: maybe they fixed it in 5).

Novell and RedHat fighting about Xen - jd

jd — Fri, 11 Aug 2006 18:44:53 +0000

But there's a difference between claiming that Xen hypervizors from the 3 series will work any Xen patched kernel, and telling that the kernel API/ABI will never be stable.

Because the first statement is wrong in the facts.

Novell and RedHat fighting about Xen - Béranger

Béranger — Fri, 11 Aug 2006 18:40:00 +0000

« Xen can not pretend to be stable, mature, or whatever you want, because it is still not integrated into the Linux kernel tree, and thus far for a good reason: the API/ABI is not yet stable. »

Désolé, Julien, but the kernel API will _never_ be stable, Greg KH dixit. It's stupid to be this way, mais les jeux sont faits, rien ne va plus !

As for Xen, I agree with Red Hat and with you. With a _server_ distro, amateurism is not acceptable, unstability being the worst part of it.

Xen.. ACCEPTED - glandium

glandium — Mon, 24 Apr 2006 23:41:23 +0000

Is it normal that the maintainer for xen-3.0 in the new queue is "Debian amd64 Build Daemon" ?

Xen.. ACCEPTED - jd

jd — Mon, 24 Apr 2006 18:17:45 +0000

We will start working on backport now, yes.

For libc6, I'll try to see if this possible. Don't know yet.

Xen.. ACCEPTED - Sven Hartge

Sven Hartge — Mon, 24 Apr 2006 18:14:25 +0000

Great.

Let the backporting begin!

Seriously: Will there be backported Xen packages and libc6-xen-packages available on backports.org?

Xen howto update - soda

soda — Fri, 14 Apr 2006 18:18:38 +0000

Merci beaucoup pour ce tuto. J'avais déjà essayé xen à partir des sources et j'avoue que c'était vraiment pas sexe. Avoir une bonne intégration avec Debian permet ainsi d'avoir quelque chose de simple et maintenu.

\o/ jd

Status of Xen in Debian - Anon

Anon — Wed, 12 Apr 2006 02:57:33 +0000

Thanks for you and your team's hard work with Xen.

Upgrading to Xen 3... aborted :( - jd

jd — Wed, 29 Mar 2006 17:22:11 +0000

Yes, finally it was a problem with udev that I upgraded from unstable version.

The slowness problem was resolved by adding acpi=off to xen command line boot parameter

Upgrading to Xen 3... aborted :( - jcben

jcben — Wed, 29 Mar 2006 17:17:40 +0000

Did you manage to work it out ? I get exactly the same problem with "testing".

About Xen in Debian - Spike!

Spike! — Tue, 28 Feb 2006 04:21:28 +0000

Wow, that was a long thread. It looks like you guys are ironing out the issues in that thread though. I sort of agree w/ Bastian though...in order for Xen to get its speed, it needs invasive changes in the kernel (not a big surprise). Ideally, Linus will integrate it into the mainline Linux kernel but that won't happen until it's stable enough. In the meantime, there's a big chunk of it that has to go into the kernel and another big chunk that does not (the UI and userspace stuff). The big chunk that has to be integrated into the kernel should be handled by the Debian kernel maintainers.

Thanks for all the work you guys are putting into it. I'm itching to try out the Intel VT and AMD Pacifica support for running Windows on Xen at high speed

Upgrading to Xen 3... aborted :( - jd

jd — Fri, 10 Feb 2006 00:30:13 +0000

Oh no, that was not so simple.

Actually, my dom0 was VERY slow, and I still don't know why.

And then, I got this error many times:

vif could not be connected. Hotplug scripts not working.

My domU were working, but not the NICs.

Upgrading to Xen 3... aborted :( - Christian Hergert

Christian Hergert — Fri, 10 Feb 2006 00:22:35 +0000

If you are running into the dreaded problem where the console hangs on boot, here is a quick fix. In /etc/inittab, replace `tty1' with `console' as below.

1:2345:respawn:/sbin/getty 38400 console

1:2345:respawn:/sbin/getty 38400 tty1
2:23:respawn:/sbin/getty 38400 tty2
3:23:respawn:/sbin/getty 38400 tty3
4:23:respawn:/sbin/getty 38400 tty4
5:23:respawn:/sbin/getty 38400 tty5
6:23:respawn:/sbin/getty 38400 tty6

You will lose job control in console (like ctrl-z, ctrl-c, etc), but as long as you ssh in you'll be fine.

Cheers,

-- Christian

Xen tutorial - Nico

Nico — Sat, 24 Sep 2005 23:59:24 +0000

It is also possible to route traffic in xend-config.sxp and not using bridging.

Xen tutorial - jd

jd — Wed, 31 Aug 2005 20:06:21 +0000

Thanks shashi, fixed.

Xen tutorial - shashi

shashi — Wed, 31 Aug 2005 19:40:27 +0000

Hi,

Thanx for a great resource.

But, there seems to be a very minor typo here:

auto dummy0
iface dummy0 inet static

address 192.168.3.30 netmask 255.255.255.0 gateway 192.168.3.1

auto eth0
iface eth0 inet manual

up /sbin/ifconfig eth0 up

auto eth1
iface eth0 inet manual
      ^^^^

up /sbin/ifconfig eth1 up

Shouldn't that be eth1 ?

shashi

[ping] Xen tutorial - ::sietch-tabr.com::/blog

::sietch-tabr.com::/blog — Tue, 30 Aug 2005 20:17:28 +0000

Xen : ça marche !

Xen est un logiciel de virtualisation permettant de faire tourner plusieurs OS (cf ce billet et les commentaires pour quelques infos, et la page officielle pour de vraies infos...). Actuellement, il permet de faire tourner Linux, NetBSD ou FreeBSD sur...

NetBSD/Xen unstable :( - Michael

Michael — Wed, 24 Aug 2005 21:18:40 +0000

For science :

On Athlon XP 2000+  
Make time in Debian domu :  1m50.293 
Make time in Netbsd domu :  1m33.730 
 
each domu have the same amount on ram and run on same dom0 debian

NetBSD/Xen unstable :( - Michael

Michael — Wed, 24 Aug 2005 20:01:57 +0000

Hi !

My setup :

  Dom0 ->  Debian Sarge  (xen 2.0.7 binairie kernel)
  DomU1 -> Debian Etch   (xen 2.0.7 binairie kernel) 
  DomU2 -> Netbsd 3.0 Beta 200508120000Z  (netbsd 3.0 xen binairie kernel)

I haved succesfuly compile lftp

Michael

Xen tutorial - jarjar26

jarjar26 — Tue, 23 Aug 2005 16:43:04 +0000

I use kernel on ftp xen site ...

But yoday,I haved find !!

 # apt-get install udev on Debian DomU in chroot

Xen tutorial - jd

jd — Mon, 22 Aug 2005 15:12:49 +0000

Be more verbose, I did not have this error

Xen tutorial - Jarjar26

Jarjar26 — Sat, 20 Aug 2005 03:48:41 +0000

I think after bootstrap we need to make some other configuration because my Debian start but stop on starting cron ... after few second arror about respaning tty ...

Xen tutorial - eric

eric — Thu, 18 Aug 2005 13:19:02 +0000

good... you did it !

ASAP, i'll try to follow it, and maybe i'll found what's going wrong when i tried...

Xen tutorial - Vorador

Vorador — Tue, 16 Aug 2005 23:22:34 +0000

I was close to succeeding, but I hadn't one of the requirements. No coffee, no Xen ...

Xen tutorial - Steve

Steve — Tue, 16 Aug 2005 17:32:07 +0000

Looks very good.

If you wished to submit it to my site I'd take it

Xen tutorial - jd

jd — Mon, 15 Aug 2005 23:26:44 +0000

Yes, I will answer any question that I can answer, and will complete my HOWTO if necessary.

Xen tutorial - Faheem Mitha

Faheem Mitha — Mon, 15 Aug 2005 22:16:39 +0000

Thanks Julien, that looks very nice. I'll try it out on a test machine as soon as I can find time, and give you feedback. Are you willing to answer questions related to this tutorial?

Regards, Faheem.

Xen tutorial - jd

jd — Mon, 15 Aug 2005 19:14:07 +0000

Thanks, fixed.

Xen tutorial - Justin

Justin — Mon, 15 Aug 2005 18:56:05 +0000

"apt-get install xen" only works in unstable...

http://packages.debian.org/xen

xen rocks - Faheem Mitha

Faheem Mitha — Sat, 13 Aug 2005 07:39:35 +0000

> I will probably write an HOWTO next month due to popular request.

That would be super cool. As you have already observed, there is a paucity of "complete" documentation, especially by people using the Debian packages

xen rocks - sod

sod — Tue, 09 Aug 2005 18:05:29 +0000

Attention toutefois à ne pas trop confondre. Vserver n'est pas une solution de virtualisation, mais est complètement différent des chroot. chroot est un appel système qui donne donc une nouvelle racine à ton système (comme peut également le faire pivot_root, enfin, le concept est ***quasiment*** le même - pivot_root étant plus utilisé dans des initrd par exemple pour changer la racine après le chargement de modules, très utile sur des distributions où tout est en module, même le module kernel prenant en compte l'ext3).

Vserver est une véritable solution pour séparer des machines : tu as ta propre machine, etc ... mais en revanche, tu n'as qu'un seul kernel. Xen est différent, il permet justement d'avoir une solution complète de virtualisation. On le voit tout connement : un #halt# sur un xen arretera le domaine X, alors qu'avec vserver, ça arretera simplement la machine.

Bref, ce sont des approches complètement différentes. Xen a ses points forts (virtualisations, noyau propre, etc ...), mais peut paraitre parfois porki (scripts pythons, communication inter-domain), alors que vserver est un meta-patch kernel qui permet de lancer plusieurs ***instances*** de ta machine courante.

Cela dit, Xen est très bien Ah si, un point noir, il ne me semble pas que ça fonctionne sous PowerPC. Et ça, çaimal (tm).

PS : L'apport de mon post ? Il n'y en a pas beacoup, comme dans la majorité de mes interventions, seulement, j'ai juste l'impression que tu voyais xen comme vserver alors que finalement, ce sont des choses completement différentes.

xen rocks - jd

jd — Tue, 09 Aug 2005 10:58:33 +0000

I will probably write an HOWTO next month due to popular request.

Meaning while, I managed to put all my home network (3 boxes) in one box with Sarge and NetBSD domU, with several bridges.

xen rocks - eric

eric — Mon, 08 Aug 2005 22:45:22 +0000

Intéressant, intéressant, surtout que je galère depuis 2 jours pour faire tourner mon domU sarge !!! pas moyen de le faire démarrer... j'ai essayé avec un LVM puis ensuite un fichier img... et maintenant j'ai un kernel panic je suis très très embêté, mais je continue à creuser

en tout cas, si jamais tu te sens de faire un petit 'howto' sur le sujet... n'hésite pas ! (même si y'en a déjà plusieurs qui existent concernant debian et xen)

eric:

xen rocks - jd

jd — Sun, 07 Aug 2005 20:52:51 +0000

I mainly used the documention provided by Xen itself.

I did not found any "complete" documentation, mainly because many people simply use the tarball provided by Xen, and run ./install.sh

I use the Xen debian package and I managed to recompile my xen0 and xenU kernels. I recognized that it took me 3 hours to understand how to do this, mainly because the 'make menuconfig ARCH=xen' is a little tricky sometimes.

But it works, and I just succeeded in install NetBSD 2.0.

xen rocks - Faheem Mithaf

Faheem Mithaf — Sun, 07 Aug 2005 20:42:56 +0000

That's very interesting. I'd like to try Xen too. I think it could be very useful. What documentation did you use?

Best regards, Faheem.